CVE-2026-40706
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I. Basic Information for CVE-2026-40706
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfs_build_permissions_posix() in acls.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path (stat, readdir, open) when processing a security descriptor with multiple ACCESS_DENIED ACEs containing WRITE_OWNER from distinct group SIDs.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tuxera NTFS-3G 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tuxera NTFS-3G是芬兰Tuxera公司的一套开源的、跨平台的用于支持NTFS分区读写的驱动程序。 Tuxera NTFS-3G 2022.10.3版本至2026.2.25之前版本存在安全漏洞，该漏洞源于ntfs_build_permissions_posix函数存在堆缓冲区溢出，可能导致处理恶意NTFS镜像时损坏堆内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-40706
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IV. Related Vulnerabilities
Same weakness: CWE-122
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Heap-based buffer overflow in Siemens Simcenter Femap - CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates
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